56766540 has 24 divisors (see below), whose sum is σ = 158946480. Its totient is φ = 15137728.

The previous prime is 56766529. The next prime is 56766557. The reversal of 56766540 is 4566765.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472995 + ... + 473114.

It is an arithmetic number, because the mean of its divisors is an integer number (6622770).

Almost surely, 2^56766540 is an apocalyptic number.

It is an amenable number.

56766540 is an abundant number, since it is smaller than the sum of its proper divisors (102179940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56766540 is a wasteful number, since it uses less digits than its factorization.

56766540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946121 (or 946119 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 56766540 is about 7534.3573050394. The cubic root of 56766540 is about 384.3239724713.

The spelling of 56766540 in words is "fifty-six million, seven hundred sixty-six thousand, five hundred forty".